Improvement in snatch-blocks



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Weeesew @anni GB Letters Patent No. 90,213, dated May 18, 1869.

IMPROVEMENT IN SNATCH-BLOCKS.

The Schedule referred to in these Letters Patent and making part of thesama.

To all whom it may concern.-

Be it known that I, H. O. WINSOR, of Duxbury, in the county of'Plymouth, andiState of' liassachusetts, have invented a new and usefulImprovement in Tackle- Blocks; and I do hereby declare that thefollowing is a full, clear,.and exact description thereof, which willenable others skilled in the art to make and use the saine, referencebeing had to the acconn'ninying drawings, forming part of thisspecification.

This invention relates to improvements in tackleblocks, Such as are usedfor supporting pulleys for raising heavy weights, by means of ropespassing through the said blocks over thc pulleys, and is designed toprovide a means for readily discharging the rope therefrom, or engagingit therewith, without the labor and delay of drawing the ropelengthwisethrough the opening.

It consists in an arrangement of jointed and hinged fastening for thehooks, by which the blocks are suspended,capable of being opened for theadmission o1 discharge of the rope, as will be hereinafter specified,

Figure l represents aside elevation of my improved tackle-block, with apart broken out, and

Figure 2 represents a plan view of the same.

Similar letters of reference indicate corresponding parts.

Instead of joining the upper ends of the two sides A B of the fblockrigidly, as they are now commonly formed, vI propose to separate them,and make the one, B, shorter than the other, and hinge thereto a slottedstrong bar, D, for supporting the swivel-hook E, and having a hookedend, F, for engaging with the slotted catch C, the arrangement beingsuch that when the two parts are engaged, the hook, by which the blockis suspended from its fastening, will rise vertically from the block. Y

The rope, being in a slaekened condition, may be quickly placed inposition on the pulley, or removed therefrom, by disen gagin g the bar Dfrom the cat-ch C,

stantially as specified.

' H. O. WINSOR. Witnesses:

ALLEN PRIOR, JosmH PETERSON.

catch,0, and to the end of the Vother part, I hinge a and turning itback on its hinge, by which much time`

